12722044997 has 16 divisors (see below), whose sum is σ = 13042460928. Its totient is φ = 12406141440.

The previous prime is 12722044987. The next prime is 12722045009. The reversal of 12722044997 is 79944022721.

It is a cyclic number.

It is not a de Polignac number, because 12722044997 - 2²² = 12717850693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12722044987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3817622 + ... + 3820952.

It is an arithmetic number, because the mean of its divisors is an integer number (815153808).

Almost surely, 2^12722044997 is an apocalyptic number.

It is an amenable number.

12722044997 is a deficient number, since it is larger than the sum of its proper divisors (320415931).

12722044997 is a wasteful number, since it uses less digits than its factorization.

12722044997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3980.

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 12722044997 in words is "twelve billion, seven hundred twenty-two million, forty-four thousand, nine hundred ninety-seven".